什么是棱堡

英文的哦,我从WIKI上找的,准备好,英文来了!

定义来了，不知道中国的教授们对你的翻译会不会满意。A bastion is a structure projecting outward from the main enclosure of a fortification, situated in both corners of a straight wall (termed curtain), with the shape of a sharp point, facilitating active defense against assaulting troops. It allows the defenders of the fort to cover adjacent bastions and curtains with defensive fire.

The bastion was designed to offer a full range on which to attack oncoming troops. Previous fortifications were of little use within a certain range. The bastion solved this problem. By using cannon to cover the curtain side of the wall, the forward cannon could concentrate on oncoming targets.

Types

Various types of bastions have been used throughout history.

Solid bastions are those that are filled up entirely, and have the ground even with the height of the rampart, without any empty space towards the center.

Void or hollow bastions are